1. Department of Nasopharyngeal Carcinoma, Sun Yat-sen University Cancer Center, Guangzhou, China
2. Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine
3. Guangdong Key Laboratory of Nasopharyngeal Carcinoma Diagnosis and Therapy, Guangzhou, China
4. Department of Radiation Oncology, Xiangya Hospital of Central South University, Changsha, China
5. Department of Radiation Oncology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
6. Department of Radiation Oncology, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Science, Guangzhou 510080, China
7. Department of Biostatistics, School of Public Health, Southern Medical University, Guangzhou, 510515, China
8. Division of Clinical Trials and Epidemiological Sciences, National Cancer Centre Singapore, Singapore
9. Department of Clinical Trials Center, Sun Yat-sen University Cancer Center, Guangzhou, PR China
10. Department of Medical Statistics and Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
11. Department of Medical Statistics and Epidemiology, Sun Yat-sen University Cancer Center, Guangzhou, China
12. Division of Radiation Oncology and Medical Sciences, National Cancer Centre Singapore, 169610, Singapore
13. Oncology Academic Programme, Duke-NUS Medical School, 169857, Singapore